6
Only use rods and coaxial pipes from ifm electronic� The optimum function
is not ensured when using components from other manufacturers�
For the correct function when used with single probe, the unit needs a
large enough metal launching plate� The flange plates that are available as
accessories are not sufficient as launching plates (for suitable launching
plates→6.4.1/6.4.2).
Functions and features4
The unit continuously detects the level in tanks and generates output signals ac-
cording to the parameter settings�
2 outputs are available: one analogue output and one switching output� They can
be set separately��
Operation with single probe4.1
The single probe is made up of one individual rod� Operation with single probe is
suited for the detection of aqueous media, in particular of heavily soiled aqueous
media�
For the correct function with single probe, the unit needs a large enough
metal launching plate� It is necessary for transferring the microwave pulse
to the tank with optimum transmission power�
For installation in closed metal tanks, the tank lid serves as a launching
plate� For installation in open metal tanks, tanks made of plastic or metal
tanks with plastic lids a sufficiently large fixing plate, a metal plate or simi-
larmustbeused(→6.4.1/6.4.2).
For operation with single probe, minimum distances to tank walls, objects
in the tank, bottom of the tank and further level sensors must be adhered
to(→6.1.1).
Operation with coaxial probe4.2
The coaxial probe is made up of an inner rod and an outer probe pipe (coaxial
pipe)� The rod is centered in the coaxial pipe by one or several spacers�
In case of operation with a coaxial probe media with a low dielectric constant (e�g�
oil and oil-based media) are detected in addition to aqueous media�
No launching plate is required for operation with coaxial probe� Further-
more, no minimum distances to tank walls and objects in the tank are
required�
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